config.nvim/lua/plugins/indent-blankline.lua

require("indent_blankline").setup {
    buftype_exclude = {"terminal", "help", "packer", "NvimTree", "tagbar"},
    char = "▏", -- also set as global env
    space_char_blankline = ' ',
    max_indent_increase = 2,
    show_first_indent_level = false,
    show_trailing_blankline_indent = false,
    use_treesitter = true
}